Arsistek Treatment offers wastewater treatment solutions for municipal, industrial, and tourism facilities in Sofia, Plovdiv, Varna, Burgas, and Ruse in Bulgaria, compliant with EU standards.
Due to Bulgaria's EU membership, compliance with the UWWTD (Urban Wastewater Treatment Directive) is mandatory.
Market Profile
- EU member — UWWTD compliance mandatory
- Black Sea coast tourism (Varna, Burgas)
- Industry (Plovdiv, Sofia)
- Proximity to Turkey — shipping advantage
Legal Framework & Regulation
Regulatory authorities in Bulgaria: MOEW (Ministry of Environment and Water) environmental regulation, MRDPW (Ministry of Regional Development) municipal infrastructure, BVK municipal water companies. EU UWWTD directive is mandatory — advanced treatment for 2,000+ equivalent population. CE is mandatory, EN standards accepted. Bulgarian documentation is recommended.
Our Wastewater Treatment Solutions
- UWWTD compliant municipal advanced biological N-P
- Industrial pre-treatment
- Hotel package systems
Sector Applications
Industries we are focused on in Bulgaria:
- Municipality (EU Cohesion Fund) — UWWTD modernization
- Tourism-Hotel (Black Sea) — Varna, Burgas, Albena, Golden Sands
- Lukoil Burgas Refinery
- Industrial (Plovdiv, Sofia) — Automotive, food, pharmaceuticals
- Turkish investors — Textile + food factories
Cities We Serve
- Sofia — capital
- Plovdiv — industrial center
- Varna — Black Sea port + tourism
- Burgas — petrochemicals
- Ruse — Danube river
Our Service Approach
Advanced biological N-P treatment + UV disinfection combination compliant with EU standards in Bulgaria projects. Shipment by road from the Turkey Edirne border within 1-2 days. Turkish + English/Bulgarian project team.
Operation Model
Operation to Bulgaria:
- Shipment: By road from Edirne-Kapıkule border to all of Bulgaria in 1-2 days
- Customs: EU free circulation agreements, CE sufficient
- Installation: Turkish + English/Bulgarian project manager
- Service: Sofia regional partner; emergency 24 hours
Recommended Technologies
Technology proposals for Bulgaria:
- Municipal (UWWTD compliant): Classic activated sludge + advanced N-P removal + UV
- Hotel-tourism (Black Sea): MBR + irrigation reuse
- Lukoil Burgas: Petrochemical industrial wastewater
- Plovdiv-Sofia industry: Sectoral pre-treatment
- Agricultural processing: Equalization + biological

In every region we serve, we offer technology proposals tailored to the needs. Our turnkey solutions are determined based on the scale of the project, flow rate, and characteristics of the wastewater. Additionally, the customer's energy efficiency and operational cost targets play a decisive role in technology selection.
Recommended technologies and application areas:
- MBR (Membrane Bioreactor) — A compact solution for hotels, hospitals, and coastal holiday villages; particularly preferred in projects requiring irrigation reuse.
- MBBR (Moving Bed Biofilm) — A resilient solution for increasing the capacity of existing facilities and under variable flow conditions.
- Package Treatment Systems — Modular ready systems for small settlements, factory campuses, and areas requiring rapid installation.
- Advanced Biological Treatment (N-P removal) — Nitrogen and phosphorus removal for municipalities discharging into sensitive water bodies.
- RO + UF Membrane Systems — For drinking water, seawater desalination, and industrial process water applications.
In addition, UV disinfection, ozonation, and chlorination processes are integrated based on the specific project. As a result, we provide each customer with proven solutions based on our 25 years of engineering experience and reference projects.
Frequently Asked Questions
Bulgaria'daki Projeleriniz İçin Birlikte Çalışalım
Atıksu arıtma, içme suyu arıtma ve deniz suyu arıtma projeleriniz için mühendislik tasarımından anahtar teslim kuruluma ve uzun süreli işletme desteğine kadar tam çözüm sunuyoruz.